Answer / thowsif_csm_emerson

1.Online ups - Sinusoidal Wave from.
2.Offline ups - Quasi Sine Wave from.
3.Inverter - Sine Wave from.

Answer / gmanieee@yahoo.co.in

3.Iverter-square wave form

why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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how ELCB drip when earth and phase touch together?

2 Answers  

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Why C.T secondary s2 done earthing?

4 Answers  

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ELECTRICAL MACHINE

2 Answers   Bhel, HPC, NHPC,

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why can tv operate at low voltage??

2 Answers  

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what is the difference between brush & brushless dc motor explain its operation ?

1 Answers  

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What is the field weakening mode of a ac motor?

1 Answers   L&T,

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can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value

0 Answers  

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What are the voltages at which electrical energy is transmitted

7 Answers   KSEB,

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What is voltage divider rule?

0 Answers  

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What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

0 Answers   Ambuja,

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9.The material used for coating the electrode is called........

3 Answers   SSC, TELiBrahma,

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